.btn {
    display: inline-block;
    width: 110px;
    line-height: 30px;
    text-align: center;
    border: none;
    cursor: pointer;
    background-color: #FF6600;
    color: white;
}

.btn-default {
    background-color: #b0b0b0;
    color: #fff;
    /* border: 1px solid gray; */
}

.btn-large {
    width: 202px;
    height: 50px;
    line-height: 50px;
    font-size: 16px;
}

.btn-huge {
    width: 300px;
    height: 54px;
    line-height: 54px;
    font-size: 18px;
}


/* 一对 */

.btn-group .btn {
    margin-right: 20px;
}

.btn-group .btn:last-child {
    margin: 0;
}